VoIP... The Truth And Myth
Don't be fooled into thinking that VoIP is a
new kid on the block. The Telecommunications
industry has known about... and been using...
VoIP technology of some kind for awhile. There's
always been talk concerning VoIP and how to
capitalize on this Juicy market to come. Early
on, only Cisco was really able to make it work
properly. But it was just a matter of time
before convergence would emerge and make more
"dreams" possible.
Today businesses are rushing into this market in
mass for different reasons. From the price
savings to the convergence effect of using a
single network. But there is still "truth and
myth" about VoIP as a business application you
need to be smart about when using your own IP
PBX or IP-Phone. [Note: for the purposes of this
discussion soft phone such as Skype is not
addressed.]
Myth...
Being able to be reach anyone and call from
anywhere.
This is almost true but you need optimal
conditions in order to do this. The following
problems will explain why many times challenges
still exist when trying to place a VoIP call.
Let's imagine you have an IP phone connected
to your IP PBX or have your own VoIP line and
you are willing to use it from a public network,
in a conference room, or in the hotel you are
staying in. The following problems might appear.
1. The ADSL line is too slow... This means you
might be able to place the call but lags and
echoes will appear.
2. There is no Quality of service... Without
getting into details, if someone is downloading
or uploading a heavy document, you will lose
quality because the IP is not prioritized.
3. The NAT (telecom Network) is blocking all
VoIP calls... This can be caused by multiple
problems from Port translation to firewalling.
4. Your are using the Wi-Fi... Most of the time
hotspots are just made for surfing on the Net.
Many problems could appear such as lags etc.
Hotspots aren't made for using your VoIP
phone... yet.
The Truth...
To be honest, the truth about IP phone is that
it will work fine mainly when you are using it
on a clean network using "Quality Of Service"...
and in a well known IP enabled environment. To
make it work fine you need:
1. An XDSL pro with "Quality Of Service" and
best of all connected directly to your Telco
Provider.
2. An IP phone with a good firmware... Don't
risk using a cheap phone. You'll get what you
pay for.
3. A good VoIP provider... Most of the time the
price of your calls have a bearing on their
quality too. Anything costing 50% or less than
what your standard PSTN phone service provider
is good enough (believe me they still make a
good profit).
4. No Wi-Fi... Don't use Wi-Fi for VoIP, you will
lose quality most of the time.
Conclusion:
VoIP technology is still in the growth stage and
developing everywhere because of price structure
pressures and IP convergence advances. Just
don't get the false sense of security that all
VoIP providers are good, and don't think you
will be able to place a call from anywhere.
If you want to introduce VoIP into your
business, do your home work. Be sure to consider
your intended application(s), appropriate
configuration, and beware of being unduly
impressed only by the price you might pay. Make
your decision based on the best combination of
meeting your application, configuration, and
cost point requirements... as a total package.
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